Abi Williams was a Welsh nationalist who briefly served as the President of Plaid Cymru.
When the programme visits Scotland and Wales, representatives from the Scottish National Party or Plaid Cymru participate, as do the Northern Irish parties when Northern Ireland is visited.
In October 2006, Godsiff was one of 12 Labour MPs to back Plaid Cymru and the Scottish National Party's call for an inquiry into the Iraq War.
Following the 'yes' vote in the 2011 referendum on giving the Assembly direct law-making powers, some politicians in Wales, particularly from Plaid Cymru, have called for the abolition of the Wales Office.
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In September 2012, Balchder Cymru came to public attention after it was reported by the Western Mail newspaper that the group had shared a public platform with leader of Plaid Cymru, Leanne Wood, the previous year.
James stood as Plaid Cymru candidate in Llanelli in the 1970 General Election.
He was MP for Caernarvonshire from 1945 (when he replaced the similarly named Liberal MP Goronwy Owen) until 1950, and then for Caernarvon from 1950 until February 1974, when he lost his seat to Dafydd Wigley of Plaid Cymru.
In February 2010 Davies' work was mentioned, by Conservative MP David Davies and Plaid Cymru MP Hywel Williams, in a Parliamentary debate concerning heath-care in Wales.
In 2002 Leighton Andrews was selected to fight Rhondda for Labour, after the party's shock defeat to Plaid Cymru's Geraint Davies at the 1999 Assembly election.
While remaining honorary member and supporter of the Wales nationalist party, Plaid Cymru, Davis now lives in Avalon on Catalina Island, a small island in the Pacific Ocean off the coast of southern California.
Of the minor parties, Plaid Cymru and the Green Party increased their number of councillors, whilst the United Kingdom Independence Party picked up a handful.
In the past, some Plaid Cymru members have advocated that an independent Wales would be better served by a Welsh constitutional monarchy, one which would engender the affection and allegiance of the Welsh people and legitimize Welsh sovereignty.
Plaid Cymru Youth has campaigned against university top-up fees, the Iraq War, and the development of new nuclear arms, for the re-introduction of grants for university students, for affordable housing for young people and for a Yes vote in the Welsh devolution referendum, 2011.